Clark, H. F. (1962). Classrooms in the stores; an account of education and research in American retailing. Published for the Inst. for Instructional Improvement by Roxbury Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Clark, Harold Florian. Classrooms in the Stores; an Account of Education and Research in American Retailing. Sweet Springs, Mo: Published for the Inst. for Instructional Improvement by Roxbury Press, 1962.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Clark, Harold Florian. Classrooms in the Stores; an Account of Education and Research in American Retailing. Published for the Inst. for Instructional Improvement by Roxbury Press, 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.